Cervenka Consulting Forums — bond-slip model to consider hoyer(wedging) effect

Re: bond-slip model to consider hoyer(wedging) effect

null@example.com (dpryl) — Mon, 23 Nov 2015 12:30:19 +0000

Hello, please see ATENA Troubleshooting, 2.2.10 How can I take the bending and/or shear contribution of reinforcement bars into account? and 2.2.12 How can I model a pull-out experiment? for some related thoughts.

In ATENA, the bond law can not be made dependent on the reinforcement strain so far, however, it is possible to define a function along the bar/cable to scale (multiply) the bond strength by a factor depending on the position along the reinforcement. Please note this option is only available in ATENA Science.

bond-slip model to consider hoyer(wedging) effect

null@example.com (tet16) — Mon, 23 Nov 2015 03:07:37 +0000

Hi,

As I know, in the ATENA, the prestressing tendon is simulated by truss element.

However, it is hard to capture the hoyer effect using truss element (instead, solid element is the suitable choice).

I wonder, could we define the bond-slip model as the function of the longitudinal strain？

If that is the case, the hoyer effect may be captured.

Could we realize that?

Best wishes